Let us first create a −mysql> create table DemoTable1396    -> (    -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> Name varchar(40),    -> Age int    -> ); Query OK, 0 rows affected (0.93 sec)Insert some records in the table using insert −mysql> insert into DemoTable1396(Name, ... Read More

Let us first create a −mysql> create table DemoTable1    -> (    -> Id int    -> ); Query OK, 0 rows affected (1.06 sec)Insert some records in the table using insert −mysql> insert into DemoTable1 values(1); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable1 values(NULL); ... Read More

To sort multiple columns, use ORDER BY GREATEST(). Let us first create a −mysql> create table DemoTable1395    -> (    -> Value1 int,    -> Value2 int,    -> Value3 int    -> ); Query OK, 0 rows affected (0.79 sec)Insert some records in the table using insert −mysql> ... Read More

For thousands number, use MySQL FORMAT(). Let us first create a −mysql> create table DemoTable1394    -> (    -> Amount decimal(7, 3)    -> ); Query OK, 0 rows affected (0.68 sec)Insert some records in the table using insert −mysql> insert into DemoTable1394 values(60); Query OK, 1 row affected ... Read More

Following is the syntax −select * from yourTableName where yourColumnName like '%a%a%a%';Let us first create a −mysql> create table DemoTable1393    -> (    -> CountryName varchar(40)    -> ); Query OK, 0 rows affected (0.71 sec)Insert some records in the table using insert −mysql> insert into DemoTable1393 values('andorra'); Query ... Read More

Let us first create a −mysql> create table DemoTable1392    -> (    -> ArrivalDate  date    -> ); Query OK, 0 rows affected (0.43 sec)Insert some records in the table using insert −mysql> insert into DemoTable1392 values('2019-09-10'); Query OK, 1 row affected (0.46 sec) mysql> insert into DemoTable1392 values('2019-09-26'); ... Read More

The error occurs because we have a comma at the end of the column names, just before “from tablename’. Here is the error you may have got −mysql> select ClientId, ClientName, ClientAge, from DemoTable1391; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds ... Read More

If the string begins with integer then it converts the string to integer, otherwise it won’t. Let us first create a −mysql> create table DemoTable1390    -> (    -> StudentId varchar(20)    -> ); Query OK, 0 rows affected (0.93 sec)Insert some records in the table using insert −mysql> ... Read More

Let us first create a −mysql> create table DemoTable1    -> (    -> StudentFirstName varchar(20),    -> StudentLastName varchar(20),    -> StudentAge int,    -> StudentCountryName varchar(20)    -> ); Query OK, 0 rows affected (4.20 sec)Let us now make all column names lower case in MySQL −mysql> select ... Read More

Let us first create a −mysql> create table DemoTable1620    -> (    -> Subject varchar(20)    -> ); Query OK, 0 rows affected (0.42 sec)Insert some records in the table using insert −mysql> insert into DemoTable1620 values('mysql'); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable1620 values('MySql'); ... Read More